An end effector assembly includes first and second jaw members movable between an open and closed position to grasp tissue therebetween. First and second proximal flanges extending proximally from the second jaw member and defining a space therebetween, a proximal flange extend proximally from a proximal portion of the first jaw member and define a cam slot. A cam driver operably is coupled to the proximal flange of the first jaw member to define a space between the cam driver and the proximal flange of the first jaw member. A cam bar is disposed within the space defined between the cam driver and the proximal flange of the first jaw member. The cam bar includes a cam pin configured to move within a cam slot of the cam driver to move the first jaw member relative to the second jaw member between the open position and the closed position.

In general, surgical devices including visual indicators thereon are provided. A user of the device therefore may quickly visually ascertain various operational details of the surgical device and/or various pieces of information about the device and/or tissue of a patient being operated on.

A lesion resection method includes a marking step of forming a three-dimensional marking in peripheral tissues of a lesion; a grasping step of grasping the lesion by a grasping forceps; a retracing step of pulling the marking to a hand side of a staple ejection position of a stapler by pulling the grasping forceps grasping the lesion; a ligating step of ejecting a staple from the stapler to ligate the peripheral tissues of the lesion; and a resecting step of resecting the lesion.

A device for controlling the energy supply to a medical instrument contains the medical instrument and an energy supply device. The energy supply device has at least a first and a second energy supply mode that can be preselected on the energy supply device and which supplies energy to the medical instrument according to a preselected energy supply mode. The energy supply device additionally has a third mode which differs from the at least two energy supply modes, can be preselected on the energy supply device, can detect an actuation of an energy supply operating element arranged on the medical instrument, and can carry out the supply of energy to the medical instrument in the first or second mode based on the detected actuation.

A vessel sealing device having a pair of electrodes that are maintained in spaced apart configuration when closed by non-uniform coating formed from a non-conductive material that has been applied to roughened electrodes so that the coating allows for the passage of a predetermined amount of radiofrequency (RF) energy between the electrodes. The coating has a predetermined thickness that spaces the electrodes apart while also having the predetermined non-uniformity that allows RF energy to pass between the electrodes when a vessel is trapped therein, thus desiccating the vessel positioned in the jaws. The electrodes may include a series of grooves in a herringbone pattern, with each electrode having the pattern oriented in the same direction or in opposite directions.

A surgical instrument comprising an end effector is disclosed. The end effector comprises a surgical dissector. The surgical dissector can apply mechanical and/or electrosurgical energy to treated tissue.

A surgical system includes a control circuit, a surgical instrument, and a user interface is disclosed. The surgical instrument includes a plurality of components and a sensor. Each of the plurality of components of the surgical instrument includes a device parameter and is configured to transmit its respective device parameter to the control circuit. The sensor of the surgical instrument is configured to detect a tissue parameter associated with a proposed function of the surgical instrument, and transmit the detected tissue parameter to the control circuit. The control circuit is configured to analyze the detected tissue parameter in cooperation with each respective device parameter based on a system-defined constraint. The user interface is configured to indicate whether the surgical instrument comprising the plurality of components is appropriate to perform the proposed function.

A surgical stapling instrument is disclosed. An end effector for the surgical stapling instrument comprises a staple cartridge assembly and an anvil. The staple cartridge assembly comprises a proximal end, a distal end, and a cartridge body comprising a shortened nose at the distal end. The staple cartridge assembly further comprises staples removably stored in the cartridge body, a driver configured to support at least one of the staples, and a sled movable toward the distal end. The sled comprises a ramp configured to lift the driver and at least one of the staples and a base, wherein the shortened nose of the cartridge body is shorter than the base of the sled. The anvil comprises a staple forming surface comprising a plurality of staple forming pockets and a blunt distal nose extending downward toward the staple cartridge assembly.

A surgical instrument connectable to a surgical energy module that is configured to provide a first drive signal at a first frequency range for driving a first energy modality and a second drive signal at a second frequency range for driving a second energy modality is provided. The surgical instrument can comprise a surgical instrument component configured to receive power from a direct current (DC) power source, an end effector, and a circuit. The circuit can be configured to convert the first electrical signal to a DC voltage, apply the DC voltage to the surgical instrument component, and deliver the second energy modality to the end effector according to the second drive signal. Alternatively, the circuit can be disposed within a cable assembly configured to connect the surgical instrument to the surgical energy module.

A modular energy system including a header module configured to removably connect to an energy module. The energy module can comprise a port configured to deliver one or more energy modalities to a surgical instrument connected thereto. The header module can comprise a display screen configured to display a user interface. The header module can further include a control circuit configured to detect attachment of energy modules to the modular energy system and control the display of the user interface to display UI portions for each connected module and reconfigure the displayed UI portions to accommodate the new UI portions as additional energy modules are connected to the modular energy system.